Door fastener



Patented June 24, 1930 UNITED STATES Parmi1` orricr.

EARL M. CHAMPION, JR., OF ROYERSFORD, PENNSYLVANIA, .ASSIGNOR TO ROYERSFORD FOUNDRY AND MACHINE COMPANY, INCORPORATED, F ROYERSFORD, PENNSYL- VANIA, A CORPORATON OF PENNSYLVANIA DOOR FASTENER Application filed January 20, 1928. Serial No. 248,172.

This invention relates to door fasteners of the type in which it is desired to effect a tight closure to doors subjected to sudden impact, etc., such for example, as the doors of tumbling mills, and the like.

An object of the invention is to provide a quickly detachable door fastener.

Another object is to provide a door fastener which, in addition to securing the door in position, serves as means for reinforcing the same.

Another object is to produce an efficient strong and durable door fastener which may be economically constructed and operated.

Other objects and advantages will hereinafter appear.

The views of the drawings are:

Figure 1 is a transverse section through a rectangular tumbling mill, showing my invention applied thereto;

Fig. 2 is an enlarged plan of the structure shown in Fig. 1;

Fig. 8 is an enlarged view of the upper portion of the structure shown in Fig. 1; and

Fig. 4 is a view of one end of the fastener.

Referring to the drawings, the door fastener can be applied to a rectangular receptacle, such for instance as a tumbling mill 5. As is customary in the usual construction of rect-angular, or square tumbling mills, the body of the mill has one side open that is adapted to be closed by a flat sheet constituting a door 6. As shown the edges of the door may extend slightly beyond the sides of the mill 5.

Around the open end of the body, the outside of the mill 5 has rigidly attached thereto by welding, or in any other known manner, rectangular strips 7. These strips provide a bead that reinforces the open side of the mill, as will be readily understood.

For the purpose of clamping the door to the open end of the mill 5, in the present instance use is made of one or more fasteners.

` These fasteners may include a pair of spaced rectangular bars 8, secured together by means of rivets, or the like 9.

Projecting upwardly from the top of the door are bolts which are disposed between the bars 8 in such a manner as to permit a limited sliding` movement of the fastener transversely of the door. l/Vashers 11 may be mounted on the bolts and the bars may rest on the washers. In this'way the bars 8 will be spaced above the top of the door.

One end of the fastener has rigidly projecting therefrom a block 12'. The extremity of this block is formed with a depending portion 13 that terminates inan inturned portion 14. If so desired, the block 12 may be made integral with the bars 8, or it may be made in the form of a casting which is connected to the bars 8 bv means of one of the rivets 9.

r1`he end of the bars. 8 opposite to the block 12 carries a pivot pin 15 on which is mounted the eye 16 of a bolt 17.

Adjacent to the pivot pin the outer faces of the bars 8 have mounted thereon longitudinally disposed ribs 18. The outer end of these ribs are formed with lateral extensions 19, constituting stops.

A block 20, having a pair of spaced sides 21, spaced slightly further apart than are the bars 8, is slidably mounted with respect to the bars.

The sides 21 are provided with elongated, rectangular, longitudinally disposed openings 22 in which are disposed the ribs 18. The relation of the parts is such that the block 2O can be slid outwardly or inwardly with respect to the bars 8, the movement being limited by the lateral extensions 19 engaging with lugs 28 formed on the exterior of the sides 21 of the block 20. The outer end of the block 2O is formd with a depending portion 24 that terminates in an inturned portion 25.

The construction of the inturned portions 14 and 25 should be such that when these members are caught under the strip 7 and the parts of the fastener drawn towards each other, the action will tend to force the door towards the open side of the tumbling mill.

The block is provided with a transverse web 26 in the upper side of which there is formed a V-shaped notch 27. The bolt l17 can be dropped into the notch 27 when the portions 14 and 25 are disposed beneath the strip 7 in the manner shown by Fig. 8 and the nut 28 carried thereon may be turned to draw the ends of the fastener towards each other, as will be readily understood.

Obviously, the invention is susceptible of various modifications and adaptations.

The invention claimed is:

1. The combination With a receptacle having an opening, a bead surrounding the opening on the exterior of the receptacle, and a door forthe opening having marginal engagement With the receptacle, of a door securing device comprising a member forked for a considerable distance at one end and having a depending portion at its other end 'for engagement With the said bead, means in said fork for the reception of a slidable block, said block having a depending porf Y tion at its outer edge for engagement with the said bead, and a locking means to fix the member and block in their desired position relative to each other.

- 2. A locking means for the top of a receptacle comprising a member having a depending lug portion at one end, and being longitudinally slotted for a considerable distance at its other end forming arms, the said arms being slotted for a portion of their length for the reception of a slidably mount ed yoke-shaped block, said block having a depending lug portion, and means carried by the forked ends of the member for cooperating Witli ,a recess in the yoke-shaped slidable block for locking the member and the block in the desired relationship With each other.

EARL M, CHAMPION, JR. 

